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Grooved Hollowcore: a simplified way to significantly reduce concrete consumption and increase …


Maintaining simplicity in design, precasting and construction

 


… profit margins A method to make hollowcore slabs fixed at their ends which allows for a reduction of up to 20% of the depth and consumption of concrete of finished floors has been developed, thoroughly tested and protected by patents by the engineering company Elastic Potential, in Barcelona, Spain. The method consists of producing hollowcore units with deep grooves across their top surface. Once at the job site, right on top of the grooved slabs one places negativemoment resistant reinforcement bars and pours a conventional topping, 50 mm thick at least. The significant cost reductions in the production and transportation of slabs allow the precaster to rapidly amortize the new machinery required to produce the grooved slabs. At the present date, leading machinery suppliers already have machinery available to produce Grooved Hollowcore slabs or are developing it and plan to have it soon available (Prensoland, Echo Precast Engineering, UltraSpan, Elematic, Nordimpianti, Spancrete).

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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